Individual onsite wastewater systems : proceedings of sixth national conference, 1976 - National Conference on Individual Onsite Wastewater Systems (6th : 1969); McClelland, Nina I.; National Sanitation Foundation (U.S.).; United States. Environmental Protection Agency. Office of Research and Development (Ann Arbor, Mich. : Ann Arbor Science, 1980)
Includes bibliographical references and index.
Keywords: Sewage disposal -- United States -- Congresses; Sewage disposal -- Law and legislation -- United States -- Congresses